Abell (ACO) 2199 is a galaxy cluster of Richness Class II and Bautz-Morgan type located around 417 million light years away in the constellation of Hercules. The cluster contains at least 290 identifiable galaxies. It is the very definition of Bautz-Morgan type 1 cluster due to the dominant galaxy NGC 6166 at its center.
NGC 6166 is the primary galaxy in the cluster located 490 million light years away from us. It is a supergiant elliptical galaxy with a supermassive black hole of around 30 billion M☉, and is actually one of the strongest known galaxies in terms of X-ray emissions. This galaxy is suspected to have formed through collisions due to the many globular clusters within, a 2016 study estimated 39 000. There is the large main core, and three others, two of them appear to themselves be merging. There are also two quasars, 9.4 and 10.6 billion light years away in this picture, however I have not been able to identify them.
